Spencer is president and director of the National Policy Institute, which claims to be "dedicated to the heritage, identity and future of people of the European descent in the United States and around the world."

In other words, it's a white nationalist think tank.

Those who share this ideology flocked to Donald Trump during the Republican primary and general election. The president-elect has been criticized for not keeping his distance from the movement.

"His senior adviser's a Nazi," former Vermont Gov. Howard Dean said in an interview about Trump's administration picks.